Wire-gage.



PATENTED JUNE 19,1906.

J. G. GALLAN WIRE GAGE. APPLICATKIN TILED DEO.31, 1904 2 SHEETS-SHEET 1 InQen'cor" John G. Callan I oqtty Wing-mun PATENTED JUNE 19, 1906.

v- No. 824,064.

J. G. OALLAN.

WIRE GAGE.

APPLICATION FILED DBfLSl. 1904.

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1 JOHN G. (JALLAN, OF'LYNN, MASSACHUSETTS, ASSIGNOR ro GENERAL ELECTRIC COMPANY,- A CORPORATION on NEW YORK.

WIRE-GAGE.

Specification of Letters Patent.

Patented. June 19, 1906.

To all whom it may concern:

1 Be it known th" t 1, JOHN G. CALLAN, a citizen of the United States,-residing atLynn, county of Essex, State of Massachusetts, have invented certain'new and useful Improvements in 'Wire-Gages, of which the following is a specification.

" acter'which shall be of simple andcompact and removed be'gaged.

. The present invention relates to micromelarities in the thicknesses of wires and similar handy and highly-efficient device of this charconstruction and adaptedto be'applied" to In the manufacture of insulatedconductOrwire, especiall the'film-coated variety, it is necessary to requently gagethe insulated wire as it is drawn from the coating-machine and while the coating is still in a tender condition to ascertain if the requisite thickness of coating'has been applied and whether or not it-is substantially uniform, sothat the oper-' ator of the machine may know if the latter is performing its function in the desiredmanner.

My improved gage is especially designed for conveni'entlytesting this wire with tender coating; and it'consists of a suitable frame having. at one end a pair of rolls, between which the wire to be gaged may pass,

one of which is mounted on a fixed axis, while the other is mounted on'a transversely-movable axis carried by a pivoted frame normally under spring-tension tending to move the rolls together with slight but substantially uniformpressure. The long 'arm' of the'pivoted frame engages a short arm of a counter balanced pointer, which moves in proximity to a direct reading-scale, and the spring operating on the roll-frame is engaged by atrigger,

which upon being pressed depresses the spring and permits the rear armof the frame to descend and the rolls'to separate, so thata wire may be introduced between them or removed therefrom without danger of injuring the tender coating. The main frame carries at its upper side a micrometer provided with delicate adjusting means and connected to the pointer, so that every increment of movewith facility from the article to a Application filed December 31, 1904:- Serial No. 239.067.

i ment of the latter is communicated tothe micrometer and multiplied, so that each division on the scale represents a'small fraction iently carried in the hand without interference with the movable parts or the scales.

For a more complete understanding of the invention reference may be made to the following detailed descriptionand the accom panyingf drawings, forming a part' of this specification, in which .Figure 1 is a side elevation of-a-gage embodying one form of my invention. 1 Fig. 2 is a top plan thereof with part broken away.

Fig. 3 is afront end elevation with a part in section; Fig. 4 is a longitudinalvertical section taken on line 4 f Fig. 2. Fig. 5 isa horizontal section taken on line 5 5 of Fig. 4. Fig.6 is a vertical transverse section on line 6 6 of Fig. 4. Fig. 7 is a perspective view of the counterbalanced pointer andits shaft.

Fig.8 is a detail section of the bearings of the pivoted frame and the roll carried thereby. Fig. 9 is a perspective view of the pivoted frame. Fig. 10 is asection on line 10 10 of Fig. 1, showing the adjusting means for the pivoted frame; and Fig. his a perspective view of apivoted bearing-block for the shaft of the pivoted frame. I

The frame 1 is in the form of a rectangular box, with an overhanging arm- 2 at its front end andupwardly-extendinglugs 3 at the upper side. The arm 2 is provided with an expanded lower end, which is chambered out at 4, as shown in Figs. 3, 4, and 5, for the reception of the outer stationary roll 5, mounted on screw-threaded pivots 6, extending vertically through the sidewalls and impinga ing upon the sidesof the pivots 6.

The movable roll 8 is mounted to move toward and away from the stationary'roll 5 upon a pivoted frame 9, comprising a long bifurcated arm 10, carrying'a rod or bolt 11 i at its end, anda short bifurcated arm 12, extending upwardly at right angles to the long arm and provided each of the legswi'tha IOO hub-piece 13 for the reception of short screwthreaded pivots 14 for the roll 8 and their clamping-screws 15. The shaft 16 of the frame 9 is fixed in bushes 17 at both sides of the frame and is journaled at its ends in transverse slots 18, Fig. 11, in the pivoted bearing-blocks 19, located between the inner sides of the main frame 1 and the pivoted frame 9 and pivotally supported at their lower ends on bolts 20, extending through the main frame 1, while their upper ends are adjustably held in longitudinal slots 21 by pointed screws 22, as shown in Fig. 10, wheree by the movable roll 8, carried by the pivoted frame 9, may be adjusted into with the stationary roll ,5.

The pivoted frame 9 is held elevated, with the roll 8, carried thereby, in contact with the stationary roll 5, by a leaf-spring -23, pressing against the under side of the long parallelism arm 10 d secured at one end by a bolt 24,

extending through a metal plate 25, which incloses {the lower part of the box-frame 1. J 11st back of t e bo t :24 is an aperture in the plate 25, through which extends a trigger 26, having its inner end bifurcated to straddle the spring 23, as shown in Figs. 4 and 5, so that the latter cannot move sidewise from beneath the shoulder 27 at the end of the former, The rear end of the long arm 10, or the bolt 11, carried thereby, normally supports a short arm 28 of the pointer 29, so that movement of the former is communicated to the latter. The pointer 29 is connected to its shaft 30 by a metal punching 31, bent along two sides at right angles to each other to surround the shank of the pointer and the shaft, while the edge opposite the shaft is folded over into the Ushaped arm 28, which is rendered adjustable by a screw 32, extending therethrough into the body of the punching 31. The shaft 30 is supported at its ends in pivot-screws 33, one extending through a lug 34, depending into the inner cavity of the box-frame 1, and the other through the end wall 35 of the frame, and both screws 33 are locked in place by binding-screws 36. The pointer is normally biased against movement by the pivoted frame by a contact-weight 37, secured thereto below its shaft.

The end wall 35 of the box-frame 1 extends above the main portion of the frame and is provided with a segmental surface 38 at the top thereof, which is graduated according to some scale, and in order to limit the range of movements of the pointer stop-pins 39 are secured to the end wall 35 and project into the path of the pointer. The micrometer 40 is pivotally mounted between shoulders 41 upon a transverse rod 42, carried in the lugs 3 of the box-frame and provided at its ends with adjusting-nuts 43 for moving the micrometer transversely with respect to the pointer 29, by which it is actuated through a spring-tensioned arm 44 and gears 45. The end Wall 35 is provided with a horizontal dovetail groove 46 for the reception of a dovetail projection 47 on the end of the handle or grip 48, and whereby the latter is adapted to be moved sidewise to uncover the pivot-screw 33, extending through the end wall for the purpose of adjustment.

I do not desire to restrict myself, to the particular form or construction of parts herein described and shown, since it is ap )arent that they may be changed and modifie without departing from my invention.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1.. In a portable gage, the combination of a main frame having an arm projecting therefrom, a stationary roll journaled in said arm and projecting beyond both sides thereof, a transversely-movable roll normally springpressed toward said stationary roll, and means for indicating the extent of separation of said rolls.

2. In a portable gage, the combination of a main frame having an arm projecting therefrom, a stationary roll journaled in said arm and projecting beyond both sides thereof, a transversely-movable roll, a pivoted frame mounted on said main frame and carryin said movable roll, a spring acting upon sai pivoted frame tending to move said rolls together, and means for indicating the extent of separation of said rolls.

3. In a portable gage, the combination. of a main frame having an arm projecting therefrom, a stationary roll journaled in said arm, a transversely-movable roll, a pivoted frame in which said movable roll is journaled, bearing-blocks for said pivoted frame, means for in ependently adjusting said blocks, and means for indicating the extent of separation of said rolls.

4. In a portable gage, the combination of a main frame having a handle at one end and an arm at the other, a stationary roll journaled in said arm, a transversely-movable roll to cooperate therewith, a pivoted frame in which said movable roll is journaled, a spring acting on said pivoted frame to move said movable roll toward said stationary roll, a trigger arranged to retract said spring, and means to indicate the extent of separation of said rolls.

5. In a portable gage, the combination of a main frame, a stationary roll journaled therein, a s ring-pressed pivoted frame mounted on sai main frame, a movable roll journaled in said pivoted frame, a biased pointer pivoted in proximity to said pivoted frame and provided with an adjustable arm normally resting at one end upon said. pivoted frame, and means for retracting said frame.

6. In a portable gage, the combination of a 7 824,064 A r v a frame havin an arm extending therefrom In witness whereof have hereunto set my provided Wit a chambered end portion projecting beyond the sides of the arm, a roll journaled in said end portion, a transversely-, 5 movable r011 normally pressed toward the other roll, and means for indicating the eX- tent ofseparation of said rolls hand this 29th day of December, 1904.

JOHN. G. OALLAN.

Witnesses:

JOHN, A. McMANUs, Jr., HENRY O. WESTENDARP.- 

